ensure workdir is always an absolute path (#54)

CHANGELOG.md

@@ -9,8 +9,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
+- Ensure `workdir` is an absolute path
+  ([#54](https://github.com/stac-utils/stac-task/pull/51)).
 - When a `workdir` is set for a `Task` the `workdir` will no longer be removed
-  by default [#51](https://github.com/stac-utils/stac-task/pull/51)). That is,
+  by default ([#51](https://github.com/stac-utils/stac-task/pull/51)). That is,
   the `save_workdir` argument to `Task` constructor now defaults to `None`, and
   if left as `None` the default behavior is now conditional on whether or not a
       `workdir` is specified.

stactask/task.py

@@ -85,7 +85,7 @@ def __init__(
             # if we are using a temp workdir we want to rm by default
             self._save_workdir = save_workdir if save_workdir is not None else False
         else:
-            self._workdir = Path(workdir)
+            self._workdir = Path(workdir).absolute()
             makedirs(self._workdir, exist_ok=True)
             # if a workdir was specified we don't want to rm by default
             self._save_workdir = save_workdir if save_workdir is not None else True

tests/test_task.py

@@ -61,6 +61,7 @@ def test_tmp_workdir(items: Dict[str, Any], save_workdir: Optional[bool]) -> Non
     assert nothing_task._save_workdir is expected
     workdir = nothing_task._workdir
     assert workdir.parts[-1].startswith("tmp")
+    assert workdir.is_absolute() is True
     assert workdir.is_dir() is True
     del nothing_task
     assert workdir.is_dir() is expected
@@ -77,6 +78,7 @@ def test_workdir(
     assert t._save_workdir is expected
     workdir = t._workdir
     assert workdir.parts[-1] == "test_task"
+    assert workdir.is_absolute() is True
     assert workdir.is_dir() is True
     del t
     assert workdir.is_dir() is expected